glover



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QM T L 0 .B RG Em VD OA LEA GH R ..0 BP .B H nu A M No. 75,651.5. Pmmed MM. 17, 186s.

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2 Sheets-Sheet 2.

A B GLOVER MACHINE F011 HEADING BoLTs.

:n fer www ZM Ei ALMON B. GLOVE-R, 'OF BIRMINGHAM, CONNECTICUT. 4

new Paone No. 75,675, me Mai-1. 1 7, isos.

IMPROVEMENT 1N naomi: ros ssinme soms.

di Siphon rifz'mhts in ttm Estufa fatm't mit making; mrt si it: same.

To ALL wHoM 1T MAY ooNosnN:

Be it known that I, B. GLOYEB, of Birmingham-in the county of New Haven, and State of Connecticut, have invented a new Improvement in Machines for HeadingV Bolts; and' do hereby'declare the following, .when teken iis, connection with the accompanying drawings and the letters. of reference marked thereon, to he a full', clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-- v l Figure 2, a sideve'sr. Y V l Figure 8,' a section on line x z, .looking toward the blank-holder; andin Figure 4,`a longitudinal central section. l

This invention relates to an improvement in that class of machines used 'forthe manufacture of bolts, such c'shave formed upon one end s small square head, and directly thereunder a round collal-,Yand which are known 'to the trade by the title of bed-scre'wsg" and The inventionconsists,irst, in the arrangement andpperation of the follower', sothet, after the heading1 die has closed upon the head of the bolt, the followenwill .advance, perfectly'ill, and complete the head; and combining therewith anfnutomaticifdnger, which at theproper timel presents itself to the holding-die for the purpose of supporting the blank.v V

To enable others to 'constrctand use my improvement, -I will proceed to describe th'esame, as illustratedn the accompanying drawings'. l l l PA is the bed-plate or framefor supporting the operative mechanism of the machine; B, the driving-shaft, resting and so'as to'revolve in bearings, C, and driven bythe application of power thereto through the pulley D. E is the fired holding-die, and F a corresponding movable die,ft`he face of each being formed to receive one- -half the blank -to beheaded, and the' movable d ie is closed against the xed,die, as denoted in red, lig. 1, by' means. of the ca-m G, acting thrugh-the toggle-joint H; whichsaid movement draws the die F from orforces lit to the fixed dier E, so that when the blank is leid` between the dies F and E, and the dies closed, the blank' is securely held.4 Between the tivo dies, and near their rear end, a suppex-ting-pini a,Y is listed in one die, and an opening formed in the other die to receive tho said pin, and the 4said pin placed so as to be in the proper posi tion to support the blank 'when laid between the dies. TheY other end of the blank is supported by a 'iinger,"b, pivoted to the frime, and so that when raised, 'as denoted in figs. 1 and 8, the blank will rest on the pin e and 4finger b; and, when the dies are closed', then an arm, c, operated byV the cam Lis thrown back, as denoted in red, Sg. 3, and causes the Enger b to -drop out'ofthe yay, as denoted in red, g. 8, an'dv'rhen again the finger is wanted, at the proper time the arm c is moved forward toraise the finger to the' first position, as described. Thus the-blank is-supported until grasped and headed by the dies F and E` In the rear of and entering the dies F and E, is arranged an adjustable spndlql), entering the-said dies, so that the end of the blank resting against the said spindle,'govrns the1 length of the bolt-below the head, and is adjusted to di'ercut lengths by nuts, d and e, and .the said spindle is moved to throw the bolt from the .dies after the head is formed, hfy meansof a cam, `K, through the lever M.

The headiug-dief-is 'fixed in o. diefholder, N,l as 4seen in gf, andthe said die-holder attached to a slide, and moved to and from the holdingdies in propcr'gudes, P, by the octioi of e. cani, R, upon the slide, to throw the die forward upon a 1ever,-S, 'to f eturn'the slide, as seen in iig. 4. Through the said slide, and entering theheading-dief, ia'a follower, l, or, if' deemed necessary, (as, QI'think, it is at least expedient,) I place a.

hardened block; ,-nto the die before the follower. The said 'follower 'extends bach through the slide at the rear, and so that' the same csmR willroperate therein. The distance which the follower extends through'tho slide is udjustedbj nutsn. I A 'Y V When the camR revolves, as denoted'in iig.' d, it first forces vthe slide, with the headingdie, forward; then, passing on the said cam, strikes the end of `the follower h, and forces that forward to the extent of its projection through the slide.

By this operation, in the first-movement, the blank enters the heading-die, and upsets the end of the blank to form the neck and square head. 'The last short movement of the follover adds an extra pressure after the movement of the headng-dia has ceased, und forces the metal to completely andperfectly {llfthe die. After the head has been thus formed, the slide returns, and as it returns unotherocnm, T, strikes the slide U, which is attached to the follower h, as seen 'in 5g. 1, and forces the follower still further forward to' drv'e the head of the bolt from the heading-die.r Thus the bolt is inserted into the mnelxirie, nd headed completely inV the mest perfect manner. a l

'Having thus fully described my invention, vsjhst I claim as new and 'nsefu-lysnd degire to serrure by Letter; Patent, is-

1. The combination of'v the cam R, slide 0, and. dief, with the csmtT, onxilinry slide U, screw-thx-emlecly follower la, and nuts n'n, all constructed and arranged asdscribed.

2. The supporting-linger b, in combination with the-holding-cliea Fond E, when constructed -and arranged lo as to be presented ahdretire at the proper time, 4as and for the pxrpose set fortl1.

ALMON B. GLovER. Witnesses: I

Glo. Bumm, S. A. Downs. 

